pickerOptions1: {

        disabledDate: time => {

          if (this.endTime) {

            return (

              time.getTime() >

                new Date(this.endTime).getTime() ||

              time.getTime() < Date.now()

            );

          } else {

            return time.getTime() < Date.now();

          }

        }

      },

      pickerOptions2: {

        disabledDate: time => {

          if (this.startTime) {

            return (

              time.getTime() < Date.now() ||

              time.getTime() < new Date(this.startTime).getTime()

            );

          } else {

            return time.getTime() < Date.now();

          }

        }

      }